LuciferYang commented on code in PR #43937:
URL: https://github.com/apache/spark/pull/43937#discussion_r1401467919


##########
core/benchmarks/ZStandardBenchmark-results.txt:
##########
@@ -2,26 +2,26 @@
 Benchmark ZStandardCompressionCodec
 
================================================================================================
 
-OpenJDK 64-Bit Server VM 17.0.9+8-LTS on Linux 5.15.0-1050-azure
-Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
+OpenJDK 64-Bit Server VM 17.0.9+9-LTS on Linux 5.15.0-1051-azure
+AMD EPYC 7763 64-Core Processor
 Benchmark ZStandardCompressionCodec:                    Best Time(ms)   Avg 
Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 
--------------------------------------------------------------------------------------------------------------------------------------
-Compression 10000 times at level 1 without buffer pool           2786          
 2787           2          0.0      278560.1       1.0X
-Compression 10000 times at level 2 without buffer pool           2831          
 2833           3          0.0      283091.0       1.0X
-Compression 10000 times at level 3 without buffer pool           2958          
 2959           2          0.0      295806.3       0.9X
-Compression 10000 times at level 1 with buffer pool               211          
  214           4          0.0       21145.3      13.2X
-Compression 10000 times at level 2 with buffer pool               253          
  255           1          0.0       25328.1      11.0X
-Compression 10000 times at level 3 with buffer pool               370          
  371           1          0.0       37046.1       7.5X
+Compression 10000 times at level 1 without buffer pool            657          
  659           2          0.0       65716.9       1.0X

Review Comment:
   A new CPU model (AMD EPYC 7763) has been added to GA, but the benchmark 
results look significantly different from before. Let me see if we can retry 
the test on an Intel CPU.



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